1,201 to 1,225 of 2,574 ECMAScript Jobs

UKIC Cleared Senior/Lead Front-end JavaScript Developer - Consultancy (multiple locations available in the UK) - competitive salary and quarterly bonus ** Please note - due to the nature of work, all candidates must have enhanced DV clearance (UKIC/UK*C preferred) that is active and transferable We are looking for a Senior/Lead Front-end JavaScript Developer to join … mentorship to a team of developers, guiding them through best practices and ensuring high-quality code. Design, develop, and maintain front-end components of web applications using HTML, CSS & JavaScript Collaborate with architects and other developers to design robust, scalable, and secure architectures for new projects and enhancements to existing systems. Lead and participate in agile development processes, including sprint … exceed expectations. Stay up to date with the latest industry trends and technologies, and drive continuous learning and innovation within the team. Preferred Experience Proficiency in HTML5, CSS3, and JavaScript (ES6+). Proven experience of Express.js and Nunjucks Experience using the (url removed) Design System Familiarity with the (url removed) CASA UI framework Experience with MongoDB and NoSQL variants writing More ❯

passionate about solving complex problems and want your work to make a real impact, this is the role for you. Key Responsibilities Design and develop front-end applications using JavaScript/TypeScript and modern frameworks (Angular, React, or Vue). Build responsive and user-friendly interfaces using HTML and CSS. Develop server-side applications with Java, C#, or Python to … leveraging Kafka, Kubernetes, Git, Node.js, SQL, and Python. Support the full software development lifecycle from concept through production deployment. Qualifications 3+ years of combined experience developing web applications with JavaScript/TypeScript and frameworks such as Angular, React, or Vue, including building HTML and CSS. Experience with server-side development in Java, C#, or Python. Experience with usability analysis and … or CISSP) prior to contract start. Experience with Java Spring Framework. Familiarity with testing frameworks (Jasmine, Karma, Selenium). Experience with Linux scripting (Bash or Perl). Experience using JavaScript visualization libraries (D3, Leaflet, AG Grid). Knowledge of information security principles. Experience with Agile or Kanban development methodologies. Familiarity with tools such as JIRA, Confluence, Git, and GitHub/ More ❯

Full-Stack Developer Salary up to £50,000 plus benefits Chester - Hybrid working .NET, C#, JavaScript, HTML5, CSS3 THE FULL-STACK DEVELOPER ROLE: Join a cross-functional agile team to deliver high-quality software solutions across web and cloud platforms Use .NET, C#, and modern frontend technologies to develop, enhance, and support business-critical applications Work with Microsoft Azure and … scalable, efficient systems Help drive coding standards, team processes, and innovation ESSENTIAL SKILLS: 4+ years in software development roles with full stack experience Proficient in C#, ASP.NET, HTML5, CSS3, JavaScript Experience with frontend frameworks like React.js or Vue.js Understanding of RESTful APIs and system integrations Version control with Git Agile/Scrum experience with a collaborative mindset Strong communication and … you give express consent for us to process and submit (subject to required skills) your application to our client in conjunction with this vacancy only. KEY SKILLS: .NET, C#, JavaScript, HTML5, CSS3 More ❯

applications. You will work across front-end and back-end development, mentor engineers, and help deliver high-quality, scalable solutions. Key Responsibilities Develop and maintain web applications using C#.NET, JavaScript, and modern frameworks. Contribute to infrastructure, cloud, and IaC solutions. Implement MACH design patterns and set up new projects. Oversee deployments, review code, and mentor team members. Support agile ceremonies … user story writing, and client-facing sessions. Provide solutions for technical challenges and production issues. Requirements BPSS clearance (or eligibility). Strong skills in HTML, CSS (SASS), JavaScript, and responsive web design. Back-end experience with C#/.NET or Node/Express. Knowledge of modern JS frameworks (React, Angular, Vue, etc.). Experience with relational/NoSQL databases and More ❯

particularly in code management using Git, ensuring that software development processes align with security best practices. Responsibilities: • Front-End Development: o Design, develop, and maintain responsive user interfaces using JavaScript,NGINX, Node.js, Angular, HTML, CSS. o Implement modern front-end frameworks and tools to enhance user experience and performance. • Middle-Tier Development: o Develop robust and scalable APIs and web … technologies. Requirements: • Proven experience as a Full Stack Software Developer with a focus on both front-end and back-end development. • Strong proficiency in front-end technologies such as JavaScript, NGINX, Node.js, Angular, HTML5, CSS3. • Solid understanding of Java-based MVC frameworks (e.g., Spring MVC) and deployment on Tomcat servers. • Experience integrating and working with APIs, preferably Jama API or More ❯

Overview A ' Tech for good ' organisation based in Edinburgh is looking for a couple of Software Engineers , with good experience using Java and JavaScript (ideally Reactjs) to join their hybrid team. Work with modern technologies, in a great culture, with amazing benefits. They've been operating very successfully for several years now and they offer an award winning service that … importance of quality code. Ideal Experience You'll ideally have experience with most of the following; Java (ideally SpringBoot) Microservices Test Driven Development Front end Development (HTML, CSS and JavaScript) Working with Databases (ideally PostgreSQL) Experience with the following is highly desirable; DevOps; Docker and Kubernetes Cloud Services (AWS, Azure, GCP, OpenShift) Reactjs + TypeScript Opportunity and Benefits This opportunity More ❯

EMR, KMS, SQS, SNS, and Systems Manager. Experience in mobile platform development, such as web mobile, Android, microservices Working knowledge using proxies and proxy creation Vue.js, ASP.NET (C#), NodejsReact, JavaScript, HTML, CSS, PostgreSQL, Liquibase, Elasticsearch, and Git. Vue.js, .NET, Postgres, Oracle DB AWS CloudFormation Maintenance of geospatial applications such as ESRI ArcGIS and Geoserver Assume responsibility for quarterly OpenStreetMap refresh … with python, Microsoft VBA, and Databricks Apache Niagra Files (NiFi) Apache TIKA Databricks and Lakehouse architecture ElasticSearch AWS SQS Informatica and custom software components ElasticSearch and OpenSearch .NET, C#, Javascript, and Java, Python Terraform Experience developing and maintaining components in AWS SpringBoot framework Experience in Entity Resolution, developing and implementing methods to identify and link records across different data sources More ❯

Full Stack JavaScript Developer (Mid-Level) Salary: £65,000 - £70,000 pa (depending on experience) plus benefits, perks and healthcare options Location: Hybrid/2 x days per week - Travel to London Job Type: Permanent Security Clearance: This role is exclusively open to UK sole nationals who either hold or are eligible for Security Clearance (SC). We are on … the lookout for a talented and motivated Full Stack JavaScript Developer to join a dynamic Engineering team. If you’re passionate about creating innovative web and mobile applications while ensuring high performance and scalability, this is your opportunity to make an impact! Your Role: Designing, developing, and maintaining both front-end and back-end components of web and mobile applications … using JavaScript, Node.js, and modern frameworks and libraries such as React, Angular, or Vue.js. Collaborating with architects and other developers to design robust, scalable, and secure architectures for new projects and enhancements to existing systems. Participating in agile development processes, including sprint planning, daily stand-ups, and retrospectives. Conducting thorough code reviews to ensure code quality, performance, and adherence to More ❯

Full Stack JavaScript Developer (Mid-Level) Salary: £65,000 - £70,000 pa (depending on experience) plus benefits, perks and healthcare options Location: Hybrid/2 x days per week - Travel to London Job Type: Permanent Security Clearance: This role is exclusively open to UK sole nationals who either hold or are eligible for Security Clearance (SC). We are on … the lookout for a talented and motivated Full Stack JavaScript Developer to join a dynamic Engineering team. If you’re passionate about creating innovative web and mobile applications while ensuring high performance and scalability, this is your opportunity to make an impact! Your Role: Designing, developing, and maintaining both front-end and back-end components of web and mobile applications … using JavaScript, Node.js, and modern frameworks and libraries such as React, Angular, or Vue.js. Collaborating with architects and other developers to design robust, scalable, and secure architectures for new projects and enhancements to existing systems. Participating in agile development processes, including sprint planning, daily stand-ups, and retrospectives. Conducting thorough code reviews to ensure code quality, performance, and adherence to More ❯

Full Stack JavaScript Developer (Mid-Level) Salary: £65,000 - £70,000 pa (depending on experience) plus benefits, perks and healthcare options Location: Hybrid/2 x days per week - Travel to London Job Type: Permanent Security Clearance: This role is exclusively open to UK sole nationals who either hold or are eligible for Security Clearance (SC). We are on … the lookout for a talented and motivated Full Stack JavaScript Developer to join a dynamic Engineering team. If you’re passionate about creating innovative web and mobile applications while ensuring high performance and scalability, this is your opportunity to make an impact! Your Role: Designing, developing, and maintaining both front-end and back-end components of web and mobile applications … using JavaScript, Node.js, and modern frameworks and libraries such as React, Angular, or Vue.js. Collaborating with architects and other developers to design robust, scalable, and secure architectures for new projects and enhancements to existing systems. Participating in agile development processes, including sprint planning, daily stand-ups, and retrospectives. Conducting thorough code reviews to ensure code quality, performance, and adherence to More ❯

Full Stack JavaScript Developer (Mid-Level) Salary: £65,000 - £70,000 pa (depending on experience) plus benefits, perks and healthcare options Location: Hybrid/2 x days per week - Travel to London Job Type: Permanent Security Clearance: This role is exclusively open to UK sole nationals who either hold or are eligible for Security Clearance (SC). We are on … the lookout for a talented and motivated Full Stack JavaScript Developer to join a dynamic Engineering team. If you’re passionate about creating innovative web and mobile applications while ensuring high performance and scalability, this is your opportunity to make an impact! Your Role: Designing, developing, and maintaining both front-end and back-end components of web and mobile applications … using JavaScript, Node.js, and modern frameworks and libraries such as React, Angular, or Vue.js. Collaborating with architects and other developers to design robust, scalable, and secure architectures for new projects and enhancements to existing systems. Participating in agile development processes, including sprint planning, daily stand-ups, and retrospectives. Conducting thorough code reviews to ensure code quality, performance, and adherence to More ❯

Full Stack JavaScript Developer (Mid-Level) Salary: £65,000 - £70,000 pa (depending on experience) plus benefits, perks and healthcare options Location: Hybrid/2 x days per week - Travel to London Job Type: Permanent Security Clearance: This role is exclusively open to UK sole nationals who either hold or are eligible for Security Clearance (SC). We are on … the lookout for a talented and motivated Full Stack JavaScript Developer to join a dynamic Engineering team. If you’re passionate about creating innovative web and mobile applications while ensuring high performance and scalability, this is your opportunity to make an impact! Your Role: Designing, developing, and maintaining both front-end and back-end components of web and mobile applications … using JavaScript, Node.js, and modern frameworks and libraries such as React, Angular, or Vue.js. Collaborating with architects and other developers to design robust, scalable, and secure architectures for new projects and enhancements to existing systems. Participating in agile development processes, including sprint planning, daily stand-ups, and retrospectives. Conducting thorough code reviews to ensure code quality, performance, and adherence to More ❯

JavaScript Developer/FullStack Developer Salary: £47,000 - £53,000 per annum Location: Chester (Hybrid - 2 days per week in office) Are you a JavaScript Developer looking to work on cutting-edge technology and meaningful products? The client is a forward-thinking organisation where technology is at the heart of everything they do. As they continue to grow and invest … an exciting opportunity to be part of a collaborative, agile environment where your code will make a difference to millions of users. What You'll Be Doing As a JavaScript Developer, you'll play a key role in delivering secure, scalable, and high-quality solutions. Your work will span both frontend and backend development, and you'll be empowered to … with internal systems and third-party APIs to deliver seamless user experiences Contribute to architectural planning and engineering best practices What We're Looking For Frontend Development Proficiency in JavaScript/TypeScript and building modern, responsive UIs Frameworks and libraries such as React, Next.js, Redux, Vue.js, or Angular (React/Next.js preferred) DevOps & Cloud CI/CD tools like GitHub More ❯

Senior Software Engineer/Developer (Full Stack JavaScript) London to £100k Opportunity to progress your career in a senior, hands-on Software Engineer role at a scale-up tech company, that enables smart matching for commercial van drivers and consumers, via job bidding and route optimisation, streamlining processes and delivering CO2 carbon neutral targets, the company has been established … technology team to design and develop, troubleshoot and solve complex software issues to help scale and future proof the business. You'll work across the full tech stack using JavaScript and Vue.js on the front end, there's a range of other tech in the stack (TypeScript, Node.js, Java, Python and of course a bit of legacy PHP!), you'll … and the other two work from home. When in the office you can enjoy the onsite gym, barista coffee and free breakfast. About you: You have strong full stack JavaScript development skills and are happy to work on projects that could be weighted either way or a 50/50 split You have experience with JavaScript frameworks they use Vue.js More ❯

ENGINEER - MARYLAND - URGENT Job Type: Full-time Clearance Level: Top Secret/SCI - Full Scope Polygraph Work Arrangement: On-site Job Location: Annapolis Junction MD Background Experience with Python, JavaScript, and/or Java Familiarity with database systems and version control systems Requirements 3+ years of experience and a bachelor's degree in a technical discipline Preferred Strong communication and More ❯

Up to £105,000, London My market leading commodities trading client are looking for a Snr SDET/QA to join the Team Key Requirements: Solid experience using C#, JavaScript and Database Automated Testing. Experience working in a trading environment. Strong communication/articulation skills, with key examples of Problem Solving using the Technologies above. If you are interested, please More ❯

Up to £105,000, London My market leading commodities trading client are looking for a Snr SDET/QA to join the Team Key Requirements: Solid experience using C#, JavaScript and Database Automated Testing. Experience working in a trading environment. Strong communication/articulation skills, with key examples of Problem Solving using the Technologies above. If you are interested, please More ❯

Salesforce Developers and Architects needed for challenging opportunities in the Virginia area. SalesForce Developer/Architect - 8-10 years Salesforce Experience - Apex, Javascript, HTML, CSS, Aura Components, Flows, Experience Cloud - Integrating Salesforce with external applications - Familiarity with CI/CD pipeline best practices - Experience conducting code review Mid Level Salesforce Developer - Apex, Lightning Web Components (JS, HTML substitutable), Flows - General More ❯

Development Team Leader (.NET, C#, React/JavaScript, and Microsoft 365 tools (Power Automate, Logic Apps, Canvas Apps) Location/Working pattern: East Anglia hybrid working (They have offices across a few locations, but must be able to get to Ipswich at least once a week (2 days in any other office) Salary: Up to £70,000 based on experience More ❯

on software project specifications, activities, or status • Thoroughly document the software or system for future maintenance and updates •Significant experience with C#, ASP.Net Core web development •Experience with using JavaScript •Experience with SQL Server and Entity Framework •Experience with using and building RESTful web services •Experience with source control using Git •Experience with Visual Studio More ❯

Job Description: Develop and maintain AI-powered web applications using React, JavaScript, and Python, ensuring high performance and scalability. Integrate AI/ML models into production systems, working closely with data scientists to optimize deployment and performance. Design and implement end-to-end full-stack architectures, including front-end UI, back-end services, and database management. Stay updated on emerging More ❯

Excellent communication, collaboration, and stakeholder management skills. Ability to work in an agile environment and adapt to changing requirements and priorities. Familiarity with front-end development technologies (HTML, CSS, JavaScript) is a plus. More ❯

disability, genetic information, veteran status, or any other protected characteristic or class Requirements 3+ years of experience and a bachelor's degree in a technical discipline Experience with python, javaScript, and/or java Familiarity with database systems and version control systems Strong communication and collaboration abilities Must have an active TS/SCI clearance with Full Scope Polygraph More ❯

and sold to external customers. Reporting to the COO, this is a key role and as such has relatively complex requirements that balance current, hands on coding experience (C#, Javascript/Angular) with architecture responsibilities and oversight of devops/infrastructure. There is also line responsibility for an offshore development team, so the successful candidate will be able to demonstrate More ❯

and sold to external customers. Reporting to the COO, this is a key role and as such has relatively complex requirements that balance current, hands on coding experience (C#, Javascript/Angular) with architecture responsibilities and oversight of devops/infrastructure. There is also line responsibility for an offshore development team, so the successful candidate will be able to demonstrate More ❯